Tubing is pipe used for the transportation of crude oil
and natural gas from an oil or gas layer to the surface
after drilling is complete. It is made to withstand the
pressure generated from the extraction process.
| O.D. | Nominal mass | O.D. | w.t. | Nominal weight | Type of pipe end | |||||||||
| (lb/ft) | (kg/m) | |||||||||||||
| Threaded and coupled | Threaded and coupled | Grade | ||||||||||||
| 　 | NUE | EUE | In. | mm | In. | mm | NUE | EUE | J-55 | L-80 | N-80 | C-90 | T-95 | P-110 |
| 4 1/2" | 12.60 | 12.75 | 4.500 | 114.30 | 0.271 | 6.88 | 18.75 | 18.97 | PUN | PNU | PNU | PNU | PNU | -- |
| 15.20 | -- | 4.500 | 114.30 | 0.337 | 8.56 | 22.62 | -- | -- | P | -- | P | P | -- | |
| 17.00 | -- | 4.500 | 114.30 | 0.380 | 9.65 | 25.30 | -- | -- | P | -- | P | P | -- | |
| 18.90 | -- | 4.500 | 114.30 | 0.430 | 10.92 | 28.13 | -- | -- | P | -- | P | P | -- | |
| 21.50 | -- | 4.500 | 114.30 | 0.500 | 12.70 | 32.00 | -- | -- | P | -- | P | P | -- | |
| 23.70 | -- | 4.500 | 114.30 | 0.560 | 14.22 | 35.27 | -- | -- | P | -- | P | P | -- | |
| 26.10 | -- | 4.500 | 114.30 | 0.630 | 16.00 | 38.84 | -- | -- | P | -- | P | P | -- | |
| P-Plain; N-No threading and no coupling; U-Upset with threading and coupling | ||||||||||||||
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